Data Structure - Sony CBK-HD01 Maintenance Manual

5-2. Data Structure

Each menu item can be classified into the categories of USER, OPERATION, PAINT and MAINTE-
NANCE. In addition to these categories, each menu item has different data in the USER layer (not the
USER menu), PRESET layer, SERVICE layer (not the SERVICE menu) and FACTORY layer.
USER layer: Data layer that can be changed by menu operation.
PRESET layer: Data layer to be registered as the standard setup.
SERVICE layer: Data layer that can be changed by a service engineer after entering the Service mode.
For users, this layer is identical to the factory default setup.
FACTORY layer: Data layer that contains factory-adjusted values and fixed values.
*1: Refer to "4-1-2. How to Display the SERVCE Menu" for entering the service mode.
Menu
Data
USER
Structure
USER layer
PRESET layer
SERVICE layer
FACTORY layer
The USER layer, PRESET layer, SERVICE layer and FACTORY layer contain absolute values. The data
in the USER layer, which is at the top, is used as the actual setup value.
Regarding the items that change continuously such as DETAIL LEVEL (hereafter referred to as analog
data) in the MENU display, when the data in the PRESET layer are changed by performing REFERENCE
LOAD (refer to step 4 in 5-3-3) or a similar process that displays the differential values between the
USER layer and the PRESET layer (USER mode), the MENU display changes according to the data in
the PRESET layer. However, the values actually set do not change. In the Service mode, the MENU
display for the analog data shows the differential values between the SERVICE layer and the FACTORY
layer.
Location where the data of each layer is saved:
USER, PRESET and SERVICE layers: FRAM (AT-177 board)
FACTORY layer:
5-2
OPERA- MAINTE-
PAINT
TION NANCE
EEPROM (CN-3005, DCP-44 and DR-617 boards) and ROM
(fixed value)
FILE SERVICE
PDW-700/V1 (E)